1/*-
2 * Cronyx-Tau-PCI adapter driver for FreeBSD.
3 * Supports PPP/HDLC, Cisco/HDLC and FrameRelay protocol in synchronous mode,
4 * and asynchronous channels with full modem control.
5 * Keepalive protocol implemented in both Cisco and PPP modes.
6 *
7 * Copyright (C) 1999-2004 Cronyx Engineering.
8 * Author: Kurakin Roman, <rik@cronyx.ru>
9 *
10 * Copyright (C) 1999-2002 Cronyx Engineering.
11 * Author: Serge Vakulenko, <vak@cronyx.ru>
12 *
13 * This software is distributed with NO WARRANTIES, not even the implied
14 * warranties for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
15 *
16 * Authors grant any other persons or organisations a permission to use,
17 * modify and redistribute this software in source and binary forms,
18 * as long as this message is kept with the software, all derivative
19 * works or modified versions.
20 *
21 * Cronyx Id: if_cp.c,v 1.1.2.41 2004/06/23 17:09:13 rik Exp $
22 */
23
24#include <sys/cdefs.h>
25__FBSDID("$FreeBSD: stable/11/sys/dev/cp/if_cp.c 315221 2017-03-14 02:06:03Z pfg $");
26
27#include <sys/param.h>
28#include <sys/ucred.h>
29#include <sys/proc.h>
30#include <sys/systm.h>
31#include <sys/mbuf.h>
32#include <sys/kernel.h>
33#include <sys/module.h>
34#include <sys/conf.h>
35#include <sys/malloc.h>
36#include <sys/priv.h>
37#include <sys/socket.h>
38#include <sys/sockio.h>
39#include <sys/sysctl.h>
40#include <sys/tty.h>
41#include <sys/bus.h>
42#include <vm/vm.h>
43#include <vm/pmap.h>
44#include <net/if.h>
45#include <net/if_var.h>
46#include <dev/pci/pcivar.h>
47#include <dev/pci/pcireg.h>
48#include <machine/bus.h>
49#include <sys/rman.h>
50#include "opt_ng_cronyx.h"
51#ifdef NETGRAPH_CRONYX
52#   include "opt_netgraph.h"
53#   ifndef NETGRAPH
54#	error #option	NETGRAPH missed from configuration
55#   endif
56#   include <netgraph/ng_message.h>
57#   include <netgraph/netgraph.h>
58#   include <dev/cp/ng_cp.h>
59#else
60#   include <net/if_sppp.h>
61#   include <net/if_types.h>
62#include <dev/pci/pcivar.h>
63#   define PP_CISCO IFF_LINK2
64#   include <net/bpf.h>
65#endif
66#include <dev/cx/machdep.h>
67#include <dev/cp/cpddk.h>
68#include <machine/cserial.h>
69#include <machine/resource.h>
70
71/* If we don't have Cronyx's sppp version, we don't have fr support via sppp */
72#ifndef PP_FR
73#define PP_FR 0
74#endif
75
76#define CP_DEBUG(d,s)	({if (d->chan->debug) {\
77				printf ("%s: ", d->name); printf s;}})
78#define CP_DEBUG2(d,s)	({if (d->chan->debug>1) {\
79				printf ("%s: ", d->name); printf s;}})
80#define CP_LOCK_NAME	"cpX"
81
82#define CP_LOCK(_bd)		mtx_lock (&(_bd)->cp_mtx)
83#define CP_UNLOCK(_bd)		mtx_unlock (&(_bd)->cp_mtx)
84#define CP_LOCK_ASSERT(_bd)	mtx_assert (&(_bd)->cp_mtx, MA_OWNED)
85
86static	int cp_probe		__P((device_t));
87static	int cp_attach		__P((device_t));
88static	int cp_detach		__P((device_t));
89
90static	device_method_t cp_methods[] = {
91	/* Device interface */
92	DEVMETHOD(device_probe,		cp_probe),
93	DEVMETHOD(device_attach,	cp_attach),
94	DEVMETHOD(device_detach,	cp_detach),
95
96	DEVMETHOD_END
97};
98
99typedef struct _cp_dma_mem_t {
100	unsigned long	phys;
101	void		*virt;
102	size_t		size;
103	bus_dma_tag_t	dmat;
104	bus_dmamap_t	mapp;
105} cp_dma_mem_t;
106
107typedef struct _drv_t {
108	char	name [8];
109	int	running;
110	cp_chan_t	*chan;
111	cp_board_t	*board;
112	cp_dma_mem_t	dmamem;
113#ifdef NETGRAPH
114	char	nodename [NG_NODESIZE];
115	hook_p	hook;
116	hook_p	debug_hook;
117	node_p	node;
118	struct	ifqueue queue;
119	struct	ifqueue hi_queue;
120#else
121	struct	ifqueue queue;
122	struct	ifnet *ifp;
123#endif
124	short	timeout;
125	struct	callout timeout_handle;
126	struct	cdev *devt;
127} drv_t;
128
129typedef	struct _bdrv_t {
130	cp_board_t	*board;
131	struct resource *cp_res;
132	struct resource *cp_irq;
133	void		*cp_intrhand;
134	cp_dma_mem_t	dmamem;
135	drv_t		channel [NCHAN];
136	struct mtx	cp_mtx;
137} bdrv_t;
138
139static	driver_t cp_driver = {
140	"cp",
141	cp_methods,
142	sizeof(bdrv_t),
143};
144
145static	devclass_t cp_devclass;
146
147static void cp_receive (cp_chan_t *c, unsigned char *data, int len);
148static void cp_transmit (cp_chan_t *c, void *attachment, int len);
149static void cp_error (cp_chan_t *c, int data);
150static void cp_up (drv_t *d);
151static void cp_start (drv_t *d);
152static void cp_down (drv_t *d);
153static void cp_watchdog (drv_t *d);
154static void cp_watchdog_timer (void *arg);
155#ifdef NETGRAPH
156extern struct ng_type typestruct;
157#else
158static void cp_ifstart (struct ifnet *ifp);
159static void cp_tlf (struct sppp *sp);
160static void cp_tls (struct sppp *sp);
161static int cp_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data);
162static void cp_initialize (void *softc);
163#endif
164
165static cp_board_t *adapter [NBRD];
166static drv_t *channel [NBRD*NCHAN];
167static struct callout led_timo [NBRD];
168static struct callout timeout_handle;
169
170static int cp_destroy = 0;
171
172static int cp_open (struct cdev *dev, int oflags, int devtype, struct thread *td);
173static int cp_close (struct cdev *dev, int fflag, int devtype, struct thread *td);
174static int cp_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td);
175static struct cdevsw cp_cdevsw = {
176	.d_version  = D_VERSION,
177	.d_open     = cp_open,
178	.d_close    = cp_close,
179	.d_ioctl    = cp_ioctl,
180	.d_name     = "cp",
181};
182
183/*
184 * Make an mbuf from data.
185 */
186static struct mbuf *makembuf (void *buf, unsigned len)
187{
188	struct mbuf *m;
189
190	MGETHDR (m, M_NOWAIT, MT_DATA);
191	if (! m)
192		return 0;
193	if (!(MCLGET (m, M_NOWAIT))) {
194		m_freem (m);
195		return 0;
196	}
197	m->m_pkthdr.len = m->m_len = len;
198	bcopy (buf, mtod (m, caddr_t), len);
199	return m;
200}
201
202static int cp_probe (device_t dev)
203{
204	if ((pci_get_vendor (dev) == cp_vendor_id) &&
205	    (pci_get_device (dev) == cp_device_id)) {
206		device_set_desc (dev, "Cronyx-Tau-PCI serial adapter");
207		return BUS_PROBE_DEFAULT;
208	}
209	return ENXIO;
210}
211
212static void cp_timeout (void *arg)
213{
214	drv_t *d;
215	int s, i, k;
216
217	for (i = 0; i < NBRD; ++i) {
218		if (adapter[i] == NULL)
219			continue;
220		for (k = 0; k < NCHAN; ++k) {
221			s = splimp ();
222			if (cp_destroy) {
223				splx (s);
224				return;
225			}
226			d = channel[i * NCHAN + k];
227			if (!d) {
228				splx (s);
229				continue;
230			}
231			CP_LOCK ((bdrv_t *)d->board->sys);
232			switch (d->chan->type) {
233			case T_G703:
234				cp_g703_timer (d->chan);
235				break;
236			case T_E1:
237				cp_e1_timer (d->chan);
238				break;
239			case T_E3:
240			case T_T3:
241			case T_STS1:
242				cp_e3_timer (d->chan);
243				break;
244			default:
245				break;
246			}
247			CP_UNLOCK ((bdrv_t *)d->board->sys);
248			splx (s);
249		}
250	}
251	s = splimp ();
252	if (!cp_destroy)
253		callout_reset (&timeout_handle, hz, cp_timeout, 0);
254	splx (s);
255}
256
257static void cp_led_off (void *arg)
258{
259	cp_board_t *b = arg;
260	bdrv_t *bd = (bdrv_t *) b->sys;
261	int s;
262	s = splimp ();
263	if (cp_destroy) {
264		splx (s);
265		return;
266	}
267	CP_LOCK (bd);
268	cp_led (b, 0);
269	CP_UNLOCK (bd);
270	splx (s);
271}
272
273static void cp_intr (void *arg)
274{
275	bdrv_t *bd = arg;
276	cp_board_t *b = bd->board;
277#ifndef NETGRAPH
278	int i;
279#endif
280	int s = splimp ();
281	if (cp_destroy) {
282		splx (s);
283		return;
284	}
285	CP_LOCK (bd);
286	/* Check if we are ready */
287	if (b->sys == NULL) {
288		/* Not we are not, just cleanup. */
289		cp_interrupt_poll (b, 1);
290		CP_UNLOCK (bd);
291		return;
292	}
293	/* Turn LED on. */
294	cp_led (b, 1);
295
296	cp_interrupt (b);
297
298	/* Turn LED off 50 msec later. */
299	callout_reset (&led_timo[b->num], hz/20, cp_led_off, b);
300	CP_UNLOCK (bd);
301	splx (s);
302
303#ifndef NETGRAPH
304	/* Pass packets in a lock-free state */
305	for (i = 0; i < NCHAN && b->chan[i].type; i++) {
306		drv_t *d = b->chan[i].sys;
307		struct mbuf *m;
308		if (!d || !d->running)
309			continue;
310		while (_IF_QLEN(&d->queue)) {
311			IF_DEQUEUE (&d->queue,m);
312			if (!m)
313				continue;
314			sppp_input (d->ifp, m);
315		}
316	}
317#endif
318}
319
320static void
321cp_bus_dmamap_addr (void *arg, bus_dma_segment_t *segs, int nseg, int error)
322{
323	unsigned long *addr;
324
325	if (error)
326		return;
327
328	KASSERT(nseg == 1, ("too many DMA segments, %d should be 1", nseg));
329	addr = arg;
330	*addr = segs->ds_addr;
331}
332
333static int
334cp_bus_dma_mem_alloc (int bnum, int cnum, cp_dma_mem_t *dmem)
335{
336	int error;
337
338	error = bus_dma_tag_create (NULL, 16, 0, BUS_SPACE_MAXADDR_32BIT,
339		BUS_SPACE_MAXADDR, NULL, NULL, dmem->size, 1,
340		dmem->size, 0, NULL, NULL, &dmem->dmat);
341	if (error) {
342		if (cnum >= 0)	printf ("cp%d-%d: ", bnum, cnum);
343		else		printf ("cp%d: ", bnum);
344		printf ("couldn't allocate tag for dma memory\n");
345 		return 0;
346	}
347	error = bus_dmamem_alloc (dmem->dmat, (void **)&dmem->virt,
348		BUS_DMA_NOWAIT | BUS_DMA_ZERO, &dmem->mapp);
349	if (error) {
350		if (cnum >= 0)	printf ("cp%d-%d: ", bnum, cnum);
351		else		printf ("cp%d: ", bnum);
352		printf ("couldn't allocate mem for dma memory\n");
353		bus_dma_tag_destroy (dmem->dmat);
354 		return 0;
355	}
356	error = bus_dmamap_load (dmem->dmat, dmem->mapp, dmem->virt,
357		dmem->size, cp_bus_dmamap_addr, &dmem->phys, 0);
358	if (error) {
359		if (cnum >= 0)	printf ("cp%d-%d: ", bnum, cnum);
360		else		printf ("cp%d: ", bnum);
361		printf ("couldn't load mem map for dma memory\n");
362		bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp);
363		bus_dma_tag_destroy (dmem->dmat);
364 		return 0;
365	}
366	return 1;
367}
368
369static void
370cp_bus_dma_mem_free (cp_dma_mem_t *dmem)
371{
372	bus_dmamap_unload (dmem->dmat, dmem->mapp);
373	bus_dmamem_free (dmem->dmat, dmem->virt, dmem->mapp);
374	bus_dma_tag_destroy (dmem->dmat);
375}
376
377/*
378 * Called if the probe succeeded.
379 */
380static int cp_attach (device_t dev)
381{
382	bdrv_t *bd = device_get_softc (dev);
383	int unit = device_get_unit (dev);
384	char *cp_ln = CP_LOCK_NAME;
385	unsigned short res;
386	vm_offset_t vbase;
387	int rid, error;
388	cp_board_t *b;
389	cp_chan_t *c;
390	drv_t *d;
391	int s = splimp ();
392
393	b = malloc (sizeof(cp_board_t), M_DEVBUF, M_WAITOK);
394	if (!b) {
395		printf ("cp%d: couldn't allocate memory\n", unit);
396		splx (s);
397		return (ENXIO);
398	}
399	bzero (b, sizeof(cp_board_t));
400
401	bd->board = b;
402	rid = PCIR_BAR(0);
403	bd->cp_res = bus_alloc_resource (dev, SYS_RES_MEMORY, &rid,
404			0, ~0, 1, RF_ACTIVE);
405	if (! bd->cp_res) {
406		printf ("cp%d: cannot map memory\n", unit);
407		free (b, M_DEVBUF);
408		splx (s);
409		return (ENXIO);
410	}
411	vbase = (vm_offset_t) rman_get_virtual (bd->cp_res);
412
413	cp_ln[2] = '0' + unit;
414	mtx_init (&bd->cp_mtx, cp_ln, MTX_NETWORK_LOCK, MTX_DEF|MTX_RECURSE);
415	res = cp_init (b, unit, (u_char*) vbase);
416	if (res) {
417		printf ("cp%d: can't init, error code:%x\n", unit, res);
418		bus_release_resource (dev, SYS_RES_MEMORY, PCIR_BAR(0), bd->cp_res);
419		free (b, M_DEVBUF);
420		splx (s);
421 		return (ENXIO);
422	}
423
424	bd->dmamem.size = sizeof(cp_qbuf_t);
425	if (! cp_bus_dma_mem_alloc (unit, -1, &bd->dmamem)) {
426		free (b, M_DEVBUF);
427		splx (s);
428 		return (ENXIO);
429	}
430	CP_LOCK (bd);
431	cp_reset (b, bd->dmamem.virt, bd->dmamem.phys);
432	CP_UNLOCK (bd);
433
434	rid = 0;
435	bd->cp_irq = bus_alloc_resource (dev, SYS_RES_IRQ, &rid, 0, ~0, 1,
436			RF_SHAREABLE | RF_ACTIVE);
437	if (! bd->cp_irq) {
438		cp_destroy = 1;
439		printf ("cp%d: cannot map interrupt\n", unit);
440		bus_release_resource (dev, SYS_RES_MEMORY,
441				PCIR_BAR(0), bd->cp_res);
442		mtx_destroy (&bd->cp_mtx);
443		free (b, M_DEVBUF);
444		splx (s);
445		return (ENXIO);
446	}
447	callout_init (&led_timo[unit], 1);
448	error  = bus_setup_intr (dev, bd->cp_irq,
449				INTR_TYPE_NET|INTR_MPSAFE,
450				NULL, cp_intr, bd, &bd->cp_intrhand);
451	if (error) {
452		cp_destroy = 1;
453		printf ("cp%d: cannot set up irq\n", unit);
454		bus_release_resource (dev, SYS_RES_IRQ, 0, bd->cp_irq);
455		bus_release_resource (dev, SYS_RES_MEMORY,
456				PCIR_BAR(0), bd->cp_res);
457		mtx_destroy (&bd->cp_mtx);
458		free (b, M_DEVBUF);
459		splx (s);
460		return (ENXIO);
461	}
462	printf ("cp%d: %s, clock %ld MHz\n", unit, b->name, b->osc / 1000000);
463
464	for (c = b->chan; c < b->chan + NCHAN; ++c) {
465		if (! c->type)
466			continue;
467		d = &bd->channel[c->num];
468		d->dmamem.size = sizeof(cp_buf_t);
469		if (! cp_bus_dma_mem_alloc (unit, c->num, &d->dmamem))
470			continue;
471		channel [b->num*NCHAN + c->num] = d;
472		sprintf (d->name, "cp%d.%d", b->num, c->num);
473		d->board = b;
474		d->chan = c;
475		c->sys = d;
476		callout_init (&d->timeout_handle, 1);
477#ifdef NETGRAPH
478		if (ng_make_node_common (&typestruct, &d->node) != 0) {
479			printf ("%s: cannot make common node\n", d->name);
480			d->node = NULL;
481			continue;
482		}
483		NG_NODE_SET_PRIVATE (d->node, d);
484		sprintf (d->nodename, "%s%d", NG_CP_NODE_TYPE,
485			 c->board->num*NCHAN + c->num);
486		if (ng_name_node (d->node, d->nodename)) {
487			printf ("%s: cannot name node\n", d->nodename);
488			NG_NODE_UNREF (d->node);
489			continue;
490		}
491		d->queue.ifq_maxlen = ifqmaxlen;
492		d->hi_queue.ifq_maxlen = ifqmaxlen;
493		mtx_init (&d->queue.ifq_mtx, "cp_queue", NULL, MTX_DEF);
494		mtx_init (&d->hi_queue.ifq_mtx, "cp_queue_hi", NULL, MTX_DEF);
495#else /*NETGRAPH*/
496		d->ifp = if_alloc(IFT_PPP);
497		if (d->ifp == NULL) {
498			printf ("%s: cannot if_alloc() interface\n", d->name);
499			continue;
500		}
501		d->ifp->if_softc	= d;
502		if_initname (d->ifp, "cp", b->num * NCHAN + c->num);
503		d->ifp->if_mtu		= PP_MTU;
504		d->ifp->if_flags	= IFF_POINTOPOINT | IFF_MULTICAST;
505		d->ifp->if_ioctl	= cp_sioctl;
506		d->ifp->if_start	= cp_ifstart;
507		d->ifp->if_init		= cp_initialize;
508		d->queue.ifq_maxlen	= NRBUF;
509		mtx_init (&d->queue.ifq_mtx, "cp_queue", NULL, MTX_DEF);
510		sppp_attach (d->ifp);
511		if_attach (d->ifp);
512		IFP2SP(d->ifp)->pp_tlf	= cp_tlf;
513		IFP2SP(d->ifp)->pp_tls	= cp_tls;
514		/* If BPF is in the kernel, call the attach for it.
515		 * The header size of PPP or Cisco/HDLC is 4 bytes. */
516		bpfattach (d->ifp, DLT_PPP, 4);
517#endif /*NETGRAPH*/
518		cp_start_e1 (c);
519		cp_start_chan (c, 1, 1, d->dmamem.virt, d->dmamem.phys);
520
521		/* Register callback functions. */
522		cp_register_transmit (c, &cp_transmit);
523		cp_register_receive (c, &cp_receive);
524		cp_register_error (c, &cp_error);
525		d->devt = make_dev (&cp_cdevsw, b->num*NCHAN+c->num, UID_ROOT,
526				GID_WHEEL, 0600, "cp%d", b->num*NCHAN+c->num);
527	}
528	CP_LOCK (bd);
529	b->sys = bd;
530	adapter[unit] = b;
531	CP_UNLOCK (bd);
532	splx (s);
533	return 0;
534}
535
536static int cp_detach (device_t dev)
537{
538	bdrv_t *bd = device_get_softc (dev);
539	cp_board_t *b = bd->board;
540	cp_chan_t *c;
541	int s;
542
543	KASSERT (mtx_initialized (&bd->cp_mtx), ("cp mutex not initialized"));
544	s = splimp ();
545	CP_LOCK (bd);
546	/* Check if the device is busy (open). */
547	for (c = b->chan; c < b->chan + NCHAN; ++c) {
548		drv_t *d = (drv_t*) c->sys;
549
550		if (! d || ! d->chan->type)
551			continue;
552		if (d->running) {
553			CP_UNLOCK (bd);
554			splx (s);
555			return EBUSY;
556		}
557	}
558
559	/* Ok, we can unload driver */
560	/* At first we should stop all channels */
561	for (c = b->chan; c < b->chan + NCHAN; ++c) {
562		drv_t *d = (drv_t*) c->sys;
563
564		if (! d || ! d->chan->type)
565			continue;
566
567		cp_stop_chan (c);
568		cp_stop_e1 (c);
569		cp_set_dtr (d->chan, 0);
570		cp_set_rts (d->chan, 0);
571	}
572
573	/* Reset the adapter. */
574	cp_destroy = 1;
575	cp_interrupt_poll (b, 1);
576	cp_led_off (b);
577	cp_reset (b, 0 ,0);
578	callout_stop (&led_timo[b->num]);
579
580	/* Disable the interrupt request. */
581	bus_teardown_intr (dev, bd->cp_irq, bd->cp_intrhand);
582
583	for (c=b->chan; c<b->chan+NCHAN; ++c) {
584		drv_t *d = (drv_t*) c->sys;
585
586		if (! d || ! d->chan->type)
587			continue;
588		callout_stop (&d->timeout_handle);
589#ifndef NETGRAPH
590		/* Detach from the packet filter list of interfaces. */
591		bpfdetach (d->ifp);
592
593		/* Detach from the sync PPP list. */
594		sppp_detach (d->ifp);
595
596		/* Detach from the system list of interfaces. */
597		if_detach (d->ifp);
598		if_free (d->ifp);
599		IF_DRAIN (&d->queue);
600		mtx_destroy (&d->queue.ifq_mtx);
601#else
602		if (d->node) {
603			ng_rmnode_self (d->node);
604			NG_NODE_UNREF (d->node);
605			d->node = NULL;
606		}
607		mtx_destroy (&d->queue.ifq_mtx);
608		mtx_destroy (&d->hi_queue.ifq_mtx);
609#endif
610		destroy_dev (d->devt);
611	}
612
613	b->sys = NULL;
614	CP_UNLOCK (bd);
615
616	bus_release_resource (dev, SYS_RES_IRQ, 0, bd->cp_irq);
617	bus_release_resource (dev, SYS_RES_MEMORY, PCIR_BAR(0), bd->cp_res);
618
619	CP_LOCK (bd);
620	cp_led_off (b);
621	CP_UNLOCK (bd);
622	callout_drain (&led_timo[b->num]);
623	splx (s);
624
625	for (c = b->chan; c < b->chan + NCHAN; ++c) {
626		drv_t *d = (drv_t*) c->sys;
627
628		if (! d || ! d->chan->type)
629			continue;
630		callout_drain (&d->timeout_handle);
631		channel [b->num*NCHAN + c->num] = NULL;
632		/* Deallocate buffers. */
633		cp_bus_dma_mem_free (&d->dmamem);
634	}
635	adapter [b->num] = NULL;
636	cp_bus_dma_mem_free (&bd->dmamem);
637	free (b, M_DEVBUF);
638	mtx_destroy (&bd->cp_mtx);
639	return 0;
640}
641
642#ifndef NETGRAPH
643static void cp_ifstart (struct ifnet *ifp)
644{
645	drv_t *d = ifp->if_softc;
646	bdrv_t *bd = d->board->sys;
647
648	CP_LOCK (bd);
649	cp_start (d);
650	CP_UNLOCK (bd);
651}
652
653static void cp_tlf (struct sppp *sp)
654{
655	drv_t *d = SP2IFP(sp)->if_softc;
656
657	CP_DEBUG2 (d, ("cp_tlf\n"));
658	/* XXXRIK: Don't forget to protect them by LOCK, or kill them. */
659/*	cp_set_dtr (d->chan, 0);*/
660/*	cp_set_rts (d->chan, 0);*/
661	if (!(sp->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO))
662		sp->pp_down (sp);
663}
664
665static void cp_tls (struct sppp *sp)
666{
667	drv_t *d = SP2IFP(sp)->if_softc;
668
669	CP_DEBUG2 (d, ("cp_tls\n"));
670	if (!(sp->pp_flags & PP_FR) && !(d->ifp->if_flags & PP_CISCO))
671		sp->pp_up (sp);
672}
673
674/*
675 * Process an ioctl request.
676 */
677static int cp_sioctl (struct ifnet *ifp, u_long cmd, caddr_t data)
678{
679	drv_t *d = ifp->if_softc;
680	bdrv_t *bd = d->board->sys;
681	int error, s, was_up, should_be_up;
682
683	was_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0;
684	error = sppp_ioctl (ifp, cmd, data);
685
686	if (error)
687		return error;
688
689	if (! (ifp->if_flags & IFF_DEBUG))
690		d->chan->debug = 0;
691	else
692		d->chan->debug = d->chan->debug_shadow;
693
694	switch (cmd) {
695	default:	   CP_DEBUG2 (d, ("ioctl 0x%lx\n", cmd));   return 0;
696	case SIOCADDMULTI: CP_DEBUG2 (d, ("ioctl SIOCADDMULTI\n")); return 0;
697	case SIOCDELMULTI: CP_DEBUG2 (d, ("ioctl SIOCDELMULTI\n")); return 0;
698	case SIOCSIFFLAGS: CP_DEBUG2 (d, ("ioctl SIOCSIFFLAGS\n")); break;
699	case SIOCSIFADDR:  CP_DEBUG2 (d, ("ioctl SIOCSIFADDR\n"));  break;
700	}
701
702	/* We get here only in case of SIFFLAGS or SIFADDR. */
703	s = splimp ();
704	CP_LOCK (bd);
705	should_be_up = (ifp->if_drv_flags & IFF_DRV_RUNNING) != 0;
706	if (! was_up && should_be_up) {
707		/* Interface goes up -- start it. */
708		cp_up (d);
709		cp_start (d);
710	} else if (was_up && ! should_be_up) {
711		/* Interface is going down -- stop it. */
712/*		if ((IFP2SP(ifp)->pp_flags & PP_FR) || (ifp->if_flags & PP_CISCO))*/
713		cp_down (d);
714	}
715	CP_DEBUG (d, ("ioctl 0x%lx p4\n", cmd));
716	CP_UNLOCK (bd);
717	splx (s);
718	return 0;
719}
720
721/*
722 * Initialization of interface.
723 * It seems to be never called by upper level?
724 */
725static void cp_initialize (void *softc)
726{
727	drv_t *d = softc;
728
729	CP_DEBUG (d, ("cp_initialize\n"));
730}
731#endif /*NETGRAPH*/
732
733/*
734 * Stop the interface.  Called on splimp().
735 */
736static void cp_down (drv_t *d)
737{
738	CP_DEBUG (d, ("cp_down\n"));
739	/* Interface is going down -- stop it. */
740	cp_set_dtr (d->chan, 0);
741	cp_set_rts (d->chan, 0);
742
743	d->running = 0;
744	callout_stop (&d->timeout_handle);
745}
746
747/*
748 * Start the interface.  Called on splimp().
749 */
750static void cp_up (drv_t *d)
751{
752	CP_DEBUG (d, ("cp_up\n"));
753	cp_set_dtr (d->chan, 1);
754	cp_set_rts (d->chan, 1);
755	d->running = 1;
756}
757
758/*
759 * Start output on the interface.  Get another datagram to send
760 * off of the interface queue, and copy it to the interface
761 * before starting the output.
762 */
763static void cp_send (drv_t *d)
764{
765	struct mbuf *m;
766	u_short len;
767
768	CP_DEBUG2 (d, ("cp_send, tn=%d te=%d\n", d->chan->tn, d->chan->te));
769
770	/* No output if the interface is down. */
771	if (! d->running)
772		return;
773
774	/* No output if the modem is off. */
775	if (! (d->chan->lloop || d->chan->type != T_SERIAL ||
776		cp_get_dsr (d->chan)))
777		return;
778
779	while (cp_transmit_space (d->chan)) {
780		/* Get the packet to send. */
781#ifdef NETGRAPH
782		IF_DEQUEUE (&d->hi_queue, m);
783		if (! m)
784			IF_DEQUEUE (&d->queue, m);
785#else
786		m = sppp_dequeue (d->ifp);
787#endif
788		if (! m)
789			return;
790#ifndef NETGRAPH
791		BPF_MTAP (d->ifp, m);
792#endif
793		len = m_length (m, NULL);
794		if (len >= BUFSZ)
795			printf ("%s: too long packet: %d bytes: ",
796				d->name, len);
797		else if (! m->m_next)
798			cp_send_packet (d->chan, (u_char*) mtod (m, caddr_t), len, 0);
799		else {
800			u_char *buf = d->chan->tbuf[d->chan->te];
801			m_copydata (m, 0, len, buf);
802			cp_send_packet (d->chan, buf, len, 0);
803		}
804		m_freem (m);
805		/* Set up transmit timeout, if the transmit ring is not empty.*/
806		d->timeout = 10;
807	}
808#ifndef NETGRAPH
809	d->ifp->if_drv_flags |= IFF_DRV_OACTIVE;
810#endif
811}
812
813/*
814 * Start output on the interface.
815 * Always called on splimp().
816 */
817static void cp_start (drv_t *d)
818{
819	if (d->running) {
820		if (! d->chan->dtr)
821			cp_set_dtr (d->chan, 1);
822		if (! d->chan->rts)
823			cp_set_rts (d->chan, 1);
824		cp_send (d);
825		callout_reset (&d->timeout_handle, hz, cp_watchdog_timer, d);
826	}
827}
828
829/*
830 * Handle transmit timeouts.
831 * Recover after lost transmit interrupts.
832 * Always called on splimp().
833 */
834static void cp_watchdog (drv_t *d)
835{
836	CP_DEBUG (d, ("device timeout\n"));
837	if (d->running) {
838		cp_stop_chan (d->chan);
839		cp_stop_e1 (d->chan);
840		cp_start_e1 (d->chan);
841		cp_start_chan (d->chan, 1, 1, 0, 0);
842		cp_set_dtr (d->chan, 1);
843		cp_set_rts (d->chan, 1);
844		cp_start (d);
845	}
846}
847
848static void cp_watchdog_timer (void *arg)
849{
850	drv_t *d = arg;
851	bdrv_t *bd = d->board->sys;
852
853	CP_LOCK (bd);
854	if (d->timeout == 1)
855		cp_watchdog (d);
856	if (d->timeout)
857		d->timeout--;
858	callout_reset (&d->timeout_handle, hz, cp_watchdog_timer, d);
859	CP_UNLOCK (bd);
860}
861
862static void cp_transmit (cp_chan_t *c, void *attachment, int len)
863{
864	drv_t *d = c->sys;
865
866	d->timeout = 0;
867#ifndef NETGRAPH
868	if_inc_counter(d->ifp, IFCOUNTER_OPACKETS, 1);
869	d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
870#endif
871	cp_start (d);
872}
873
874static void cp_receive (cp_chan_t *c, unsigned char *data, int len)
875{
876	drv_t *d = c->sys;
877	struct mbuf *m;
878#ifdef NETGRAPH
879	int error;
880#endif
881
882	if (! d->running)
883		return;
884
885	m = makembuf (data, len);
886	if (! m) {
887		CP_DEBUG (d, ("no memory for packet\n"));
888#ifndef NETGRAPH
889		if_inc_counter(d->ifp, IFCOUNTER_IQDROPS, 1);
890#endif
891		return;
892	}
893	if (c->debug > 1)
894		m_print (m, 0);
895#ifdef NETGRAPH
896	m->m_pkthdr.rcvif = 0;
897	NG_SEND_DATA_ONLY (error, d->hook, m);
898#else
899	if_inc_counter(d->ifp, IFCOUNTER_IPACKETS, 1);
900	m->m_pkthdr.rcvif = d->ifp;
901	/* Check if there's a BPF listener on this interface.
902	 * If so, hand off the raw packet to bpf. */
903	BPF_MTAP(d->ifp, m);
904	IF_ENQUEUE (&d->queue, m);
905#endif
906}
907
908static void cp_error (cp_chan_t *c, int data)
909{
910	drv_t *d = c->sys;
911
912	switch (data) {
913	case CP_FRAME:
914		CP_DEBUG (d, ("frame error\n"));
915#ifndef NETGRAPH
916		if_inc_counter(d->ifp, IFCOUNTER_IERRORS, 1);
917#endif
918		break;
919	case CP_CRC:
920		CP_DEBUG (d, ("crc error\n"));
921#ifndef NETGRAPH
922		if_inc_counter(d->ifp, IFCOUNTER_IERRORS, 1);
923#endif
924		break;
925	case CP_OVERRUN:
926		CP_DEBUG (d, ("overrun error\n"));
927#ifndef NETGRAPH
928		if_inc_counter(d->ifp, IFCOUNTER_COLLISIONS, 1);
929		if_inc_counter(d->ifp, IFCOUNTER_IERRORS, 1);
930#endif
931		break;
932	case CP_OVERFLOW:
933		CP_DEBUG (d, ("overflow error\n"));
934#ifndef NETGRAPH
935		if_inc_counter(d->ifp, IFCOUNTER_IERRORS, 1);
936#endif
937		break;
938	case CP_UNDERRUN:
939		CP_DEBUG (d, ("underrun error\n"));
940		d->timeout = 0;
941#ifndef NETGRAPH
942		if_inc_counter(d->ifp, IFCOUNTER_OERRORS, 1);
943		d->ifp->if_drv_flags &= ~IFF_DRV_OACTIVE;
944#endif
945		cp_start (d);
946		break;
947	default:
948		CP_DEBUG (d, ("error #%d\n", data));
949		break;
950	}
951}
952
953/*
954 * You also need read, write, open, close routines.
955 * This should get you started
956 */
957static int cp_open (struct cdev *dev, int oflags, int devtype, struct thread *td)
958{
959	int unit = dev2unit (dev);
960	drv_t *d;
961
962	if (unit >= NBRD*NCHAN || ! (d = channel[unit]))
963		return ENXIO;
964	CP_DEBUG2 (d, ("cp_open\n"));
965	return 0;
966}
967
968/*
969 * Only called on the LAST close.
970 */
971static int cp_close (struct cdev *dev, int fflag, int devtype, struct thread *td)
972{
973	drv_t *d = channel [dev2unit (dev)];
974
975	CP_DEBUG2 (d, ("cp_close\n"));
976	return 0;
977}
978
979static int cp_modem_status (cp_chan_t *c)
980{
981	drv_t *d = c->sys;
982	bdrv_t *bd = d->board->sys;
983	int status, s;
984
985	status = d->running ? TIOCM_LE : 0;
986	s = splimp ();
987	CP_LOCK (bd);
988	if (cp_get_cd  (c)) status |= TIOCM_CD;
989	if (cp_get_cts (c)) status |= TIOCM_CTS;
990	if (cp_get_dsr (c)) status |= TIOCM_DSR;
991	if (c->dtr)	    status |= TIOCM_DTR;
992	if (c->rts)	    status |= TIOCM_RTS;
993	CP_UNLOCK (bd);
994	splx (s);
995	return status;
996}
997
998static int cp_ioctl (struct cdev *dev, u_long cmd, caddr_t data, int flag, struct thread *td)
999{
1000	drv_t *d = channel [dev2unit (dev)];
1001	bdrv_t *bd = d->board->sys;
1002	cp_chan_t *c = d->chan;
1003	struct serial_statistics *st;
1004	struct e1_statistics *opte1;
1005	struct e3_statistics *opte3;
1006	int error, s;
1007	char mask[16];
1008
1009	switch (cmd) {
1010	case SERIAL_GETREGISTERED:
1011		CP_DEBUG2 (d, ("ioctl: getregistered\n"));
1012		bzero (mask, sizeof(mask));
1013		for (s=0; s<NBRD*NCHAN; ++s)
1014			if (channel [s])
1015				mask [s/8] |= 1 << (s & 7);
1016		bcopy (mask, data, sizeof (mask));
1017		return 0;
1018
1019#ifndef NETGRAPH
1020	case SERIAL_GETPROTO:
1021		CP_DEBUG2 (d, ("ioctl: getproto\n"));
1022		strcpy ((char*)data, (IFP2SP(d->ifp)->pp_flags & PP_FR) ? "fr" :
1023			(d->ifp->if_flags & PP_CISCO) ? "cisco" : "ppp");
1024		return 0;
1025
1026	case SERIAL_SETPROTO:
1027		CP_DEBUG2 (d, ("ioctl: setproto\n"));
1028		/* Only for superuser! */
1029		error = priv_check (td, PRIV_DRIVER);
1030		if (error)
1031			return error;
1032		if (d->ifp->if_drv_flags & IFF_DRV_RUNNING)
1033			return EBUSY;
1034		if (! strcmp ("cisco", (char*)data)) {
1035			IFP2SP(d->ifp)->pp_flags &= ~(PP_FR);
1036			IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE;
1037			d->ifp->if_flags |= PP_CISCO;
1038#if PP_FR != 0
1039		} else if (! strcmp ("fr", (char*)data)) {
1040			d->ifp->if_flags &= ~(PP_CISCO);
1041			IFP2SP(d->ifp)->pp_flags |= PP_FR | PP_KEEPALIVE;
1042#endif
1043		} else if (! strcmp ("ppp", (char*)data)) {
1044			IFP2SP(d->ifp)->pp_flags &= ~PP_FR;
1045			IFP2SP(d->ifp)->pp_flags &= ~PP_KEEPALIVE;
1046			d->ifp->if_flags &= ~(PP_CISCO);
1047		} else
1048			return EINVAL;
1049		return 0;
1050
1051	case SERIAL_GETKEEPALIVE:
1052		CP_DEBUG2 (d, ("ioctl: getkeepalive\n"));
1053		if ((IFP2SP(d->ifp)->pp_flags & PP_FR) ||
1054			(d->ifp->if_flags & PP_CISCO))
1055			return EINVAL;
1056		*(int*)data = (IFP2SP(d->ifp)->pp_flags & PP_KEEPALIVE) ? 1 : 0;
1057		return 0;
1058
1059	case SERIAL_SETKEEPALIVE:
1060		CP_DEBUG2 (d, ("ioctl: setkeepalive\n"));
1061		/* Only for superuser! */
1062		error = priv_check (td, PRIV_DRIVER);
1063		if (error)
1064			return error;
1065		if ((IFP2SP(d->ifp)->pp_flags & PP_FR) ||
1066			(d->ifp->if_flags & PP_CISCO))
1067			return EINVAL;
1068		s = splimp ();
1069		CP_LOCK (bd);
1070		if (*(int*)data)
1071			IFP2SP(d->ifp)->pp_flags |= PP_KEEPALIVE;
1072		else
1073			IFP2SP(d->ifp)->pp_flags &= ~PP_KEEPALIVE;
1074		CP_UNLOCK (bd);
1075		splx (s);
1076		return 0;
1077#endif /*NETGRAPH*/
1078
1079	case SERIAL_GETMODE:
1080		CP_DEBUG2 (d, ("ioctl: getmode\n"));
1081		*(int*)data = SERIAL_HDLC;
1082		return 0;
1083
1084	case SERIAL_SETMODE:
1085		/* Only for superuser! */
1086		error = priv_check (td, PRIV_DRIVER);
1087		if (error)
1088			return error;
1089		if (*(int*)data != SERIAL_HDLC)
1090			return EINVAL;
1091		return 0;
1092
1093	case SERIAL_GETCFG:
1094		CP_DEBUG2 (d, ("ioctl: getcfg\n"));
1095		if (c->type != T_E1 || c->unfram)
1096			return EINVAL;
1097		*(char*)data = c->board->mux ? 'c' : 'a';
1098		return 0;
1099
1100	case SERIAL_SETCFG:
1101		CP_DEBUG2 (d, ("ioctl: setcfg\n"));
1102		error = priv_check (td, PRIV_DRIVER);
1103		if (error)
1104			return error;
1105		if (c->type != T_E1)
1106			return EINVAL;
1107		s = splimp ();
1108		CP_LOCK (bd);
1109		cp_set_mux (c->board, *((char*)data) == 'c');
1110		CP_UNLOCK (bd);
1111		splx (s);
1112		return 0;
1113
1114	case SERIAL_GETSTAT:
1115		CP_DEBUG2 (d, ("ioctl: getstat\n"));
1116		st = (struct serial_statistics*) data;
1117		st->rintr  = c->rintr;
1118		st->tintr  = c->tintr;
1119		st->mintr  = 0;
1120		st->ibytes = c->ibytes;
1121		st->ipkts  = c->ipkts;
1122		st->obytes = c->obytes;
1123		st->opkts  = c->opkts;
1124		st->ierrs  = c->overrun + c->frame + c->crc;
1125		st->oerrs  = c->underrun;
1126		return 0;
1127
1128	case SERIAL_GETESTAT:
1129		CP_DEBUG2 (d, ("ioctl: getestat\n"));
1130		if (c->type != T_E1 && c->type != T_G703)
1131			return EINVAL;
1132		opte1 = (struct e1_statistics*) data;
1133		opte1->status	    = c->status;
1134		opte1->cursec	    = c->cursec;
1135		opte1->totsec	    = c->totsec + c->cursec;
1136
1137		opte1->currnt.bpv   = c->currnt.bpv;
1138		opte1->currnt.fse   = c->currnt.fse;
1139		opte1->currnt.crce  = c->currnt.crce;
1140		opte1->currnt.rcrce = c->currnt.rcrce;
1141		opte1->currnt.uas   = c->currnt.uas;
1142		opte1->currnt.les   = c->currnt.les;
1143		opte1->currnt.es    = c->currnt.es;
1144		opte1->currnt.bes   = c->currnt.bes;
1145		opte1->currnt.ses   = c->currnt.ses;
1146		opte1->currnt.oofs  = c->currnt.oofs;
1147		opte1->currnt.css   = c->currnt.css;
1148		opte1->currnt.dm    = c->currnt.dm;
1149
1150		opte1->total.bpv    = c->total.bpv   + c->currnt.bpv;
1151		opte1->total.fse    = c->total.fse   + c->currnt.fse;
1152		opte1->total.crce   = c->total.crce  + c->currnt.crce;
1153		opte1->total.rcrce  = c->total.rcrce + c->currnt.rcrce;
1154		opte1->total.uas    = c->total.uas   + c->currnt.uas;
1155		opte1->total.les    = c->total.les   + c->currnt.les;
1156		opte1->total.es	    = c->total.es    + c->currnt.es;
1157		opte1->total.bes    = c->total.bes   + c->currnt.bes;
1158		opte1->total.ses    = c->total.ses   + c->currnt.ses;
1159		opte1->total.oofs   = c->total.oofs  + c->currnt.oofs;
1160		opte1->total.css    = c->total.css   + c->currnt.css;
1161		opte1->total.dm	    = c->total.dm    + c->currnt.dm;
1162		for (s=0; s<48; ++s) {
1163			opte1->interval[s].bpv   = c->interval[s].bpv;
1164			opte1->interval[s].fse   = c->interval[s].fse;
1165			opte1->interval[s].crce  = c->interval[s].crce;
1166			opte1->interval[s].rcrce = c->interval[s].rcrce;
1167			opte1->interval[s].uas   = c->interval[s].uas;
1168			opte1->interval[s].les   = c->interval[s].les;
1169			opte1->interval[s].es	 = c->interval[s].es;
1170			opte1->interval[s].bes   = c->interval[s].bes;
1171			opte1->interval[s].ses   = c->interval[s].ses;
1172			opte1->interval[s].oofs  = c->interval[s].oofs;
1173			opte1->interval[s].css   = c->interval[s].css;
1174			opte1->interval[s].dm	 = c->interval[s].dm;
1175		}
1176		return 0;
1177
1178	case SERIAL_GETE3STAT:
1179		CP_DEBUG2 (d, ("ioctl: gete3stat\n"));
1180		if (c->type != T_E3 && c->type != T_T3 && c->type != T_STS1)
1181			return EINVAL;
1182		opte3 = (struct e3_statistics*) data;
1183
1184		opte3->status = c->e3status;
1185		opte3->cursec = (c->e3csec_5 * 2 + 1) / 10;
1186		opte3->totsec = c->e3tsec + opte3->cursec;
1187
1188		opte3->ccv = c->e3ccv;
1189		opte3->tcv = c->e3tcv + opte3->ccv;
1190
1191		for (s = 0; s < 48; ++s) {
1192			opte3->icv[s] = c->e3icv[s];
1193		}
1194		return 0;
1195
1196	case SERIAL_CLRSTAT:
1197		CP_DEBUG2 (d, ("ioctl: clrstat\n"));
1198		/* Only for superuser! */
1199		error = priv_check (td, PRIV_DRIVER);
1200		if (error)
1201			return error;
1202		c->rintr    = 0;
1203		c->tintr    = 0;
1204		c->ibytes   = 0;
1205		c->obytes   = 0;
1206		c->ipkts    = 0;
1207		c->opkts    = 0;
1208		c->overrun  = 0;
1209		c->frame    = 0;
1210		c->crc	    = 0;
1211		c->underrun = 0;
1212		bzero (&c->currnt, sizeof (c->currnt));
1213		bzero (&c->total, sizeof (c->total));
1214		bzero (c->interval, sizeof (c->interval));
1215		c->e3ccv    = 0;
1216		c->e3tcv    = 0;
1217		bzero (c->e3icv, sizeof (c->e3icv));
1218		return 0;
1219
1220	case SERIAL_GETBAUD:
1221		CP_DEBUG2 (d, ("ioctl: getbaud\n"));
1222		*(long*)data = c->baud;
1223		return 0;
1224
1225	case SERIAL_SETBAUD:
1226		CP_DEBUG2 (d, ("ioctl: setbaud\n"));
1227		/* Only for superuser! */
1228		error = priv_check (td, PRIV_DRIVER);
1229		if (error)
1230			return error;
1231		s = splimp ();
1232		CP_LOCK (bd);
1233		cp_set_baud (c, *(long*)data);
1234		CP_UNLOCK (bd);
1235		splx (s);
1236		return 0;
1237
1238	case SERIAL_GETLOOP:
1239		CP_DEBUG2 (d, ("ioctl: getloop\n"));
1240		*(int*)data = c->lloop;
1241		return 0;
1242
1243	case SERIAL_SETLOOP:
1244		CP_DEBUG2 (d, ("ioctl: setloop\n"));
1245		/* Only for superuser! */
1246		error = priv_check (td, PRIV_DRIVER);
1247		if (error)
1248			return error;
1249		s = splimp ();
1250		CP_LOCK (bd);
1251		cp_set_lloop (c, *(int*)data);
1252		CP_UNLOCK (bd);
1253		splx (s);
1254		return 0;
1255
1256	case SERIAL_GETDPLL:
1257		CP_DEBUG2 (d, ("ioctl: getdpll\n"));
1258		if (c->type != T_SERIAL)
1259			return EINVAL;
1260		*(int*)data = c->dpll;
1261		return 0;
1262
1263	case SERIAL_SETDPLL:
1264		CP_DEBUG2 (d, ("ioctl: setdpll\n"));
1265		/* Only for superuser! */
1266		error = priv_check (td, PRIV_DRIVER);
1267		if (error)
1268			return error;
1269		if (c->type != T_SERIAL)
1270			return EINVAL;
1271		s = splimp ();
1272		CP_LOCK (bd);
1273		cp_set_dpll (c, *(int*)data);
1274		CP_UNLOCK (bd);
1275		splx (s);
1276		return 0;
1277
1278	case SERIAL_GETNRZI:
1279		CP_DEBUG2 (d, ("ioctl: getnrzi\n"));
1280		if (c->type != T_SERIAL)
1281			return EINVAL;
1282		*(int*)data = c->nrzi;
1283		return 0;
1284
1285	case SERIAL_SETNRZI:
1286		CP_DEBUG2 (d, ("ioctl: setnrzi\n"));
1287		/* Only for superuser! */
1288		error = priv_check (td, PRIV_DRIVER);
1289		if (error)
1290			return error;
1291		if (c->type != T_SERIAL)
1292			return EINVAL;
1293		s = splimp ();
1294		CP_LOCK (bd);
1295		cp_set_nrzi (c, *(int*)data);
1296		CP_UNLOCK (bd);
1297		splx (s);
1298		return 0;
1299
1300	case SERIAL_GETDEBUG:
1301		CP_DEBUG2 (d, ("ioctl: getdebug\n"));
1302		*(int*)data = d->chan->debug;
1303		return 0;
1304
1305	case SERIAL_SETDEBUG:
1306		CP_DEBUG2 (d, ("ioctl: setdebug\n"));
1307		/* Only for superuser! */
1308		error = priv_check (td, PRIV_DRIVER);
1309		if (error)
1310			return error;
1311#ifndef	NETGRAPH
1312		/*
1313		 * The debug_shadow is always greater than zero for logic
1314		 * simplicity.  For switching debug off the IFF_DEBUG is
1315		 * responsible.
1316		 */
1317		d->chan->debug_shadow = (*(int*)data) ? (*(int*)data) : 1;
1318		if (d->ifp->if_flags & IFF_DEBUG)
1319			d->chan->debug = d->chan->debug_shadow;
1320#else
1321		d->chan->debug = *(int*)data;
1322#endif
1323		return 0;
1324
1325	case SERIAL_GETHIGAIN:
1326		CP_DEBUG2 (d, ("ioctl: gethigain\n"));
1327		if (c->type != T_E1)
1328			return EINVAL;
1329		*(int*)data = c->higain;
1330		return 0;
1331
1332	case SERIAL_SETHIGAIN:
1333		CP_DEBUG2 (d, ("ioctl: sethigain\n"));
1334		/* Only for superuser! */
1335		error = priv_check (td, PRIV_DRIVER);
1336		if (error)
1337			return error;
1338		if (c->type != T_E1)
1339			return EINVAL;
1340		s = splimp ();
1341		CP_LOCK (bd);
1342		cp_set_higain (c, *(int*)data);
1343		CP_UNLOCK (bd);
1344		splx (s);
1345		return 0;
1346
1347	case SERIAL_GETPHONY:
1348		CP_DEBUG2 (d, ("ioctl: getphony\n"));
1349		if (c->type != T_E1)
1350			return EINVAL;
1351		*(int*)data = c->phony;
1352		return 0;
1353
1354	case SERIAL_SETPHONY:
1355		CP_DEBUG2 (d, ("ioctl: setphony\n"));
1356		/* Only for superuser! */
1357		error = priv_check (td, PRIV_DRIVER);
1358		if (error)
1359			return error;
1360		if (c->type != T_E1)
1361			return EINVAL;
1362		s = splimp ();
1363		CP_LOCK (bd);
1364		cp_set_phony (c, *(int*)data);
1365		CP_UNLOCK (bd);
1366		splx (s);
1367		return 0;
1368
1369	case SERIAL_GETUNFRAM:
1370		CP_DEBUG2 (d, ("ioctl: getunfram\n"));
1371		if (c->type != T_E1)
1372			return EINVAL;
1373		*(int*)data = c->unfram;
1374		return 0;
1375
1376	case SERIAL_SETUNFRAM:
1377		CP_DEBUG2 (d, ("ioctl: setunfram\n"));
1378		/* Only for superuser! */
1379		error = priv_check (td, PRIV_DRIVER);
1380		if (error)
1381			return error;
1382		if (c->type != T_E1)
1383			return EINVAL;
1384		s = splimp ();
1385		CP_LOCK (bd);
1386		cp_set_unfram (c, *(int*)data);
1387		CP_UNLOCK (bd);
1388		splx (s);
1389		return 0;
1390
1391	case SERIAL_GETSCRAMBLER:
1392		CP_DEBUG2 (d, ("ioctl: getscrambler\n"));
1393		if (c->type != T_G703 && !c->unfram)
1394			return EINVAL;
1395		*(int*)data = c->scrambler;
1396		return 0;
1397
1398	case SERIAL_SETSCRAMBLER:
1399		CP_DEBUG2 (d, ("ioctl: setscrambler\n"));
1400		/* Only for superuser! */
1401		error = priv_check (td, PRIV_DRIVER);
1402		if (error)
1403			return error;
1404		if (c->type != T_G703 && !c->unfram)
1405			return EINVAL;
1406		s = splimp ();
1407		CP_LOCK (bd);
1408		cp_set_scrambler (c, *(int*)data);
1409		CP_UNLOCK (bd);
1410		splx (s);
1411		return 0;
1412
1413	case SERIAL_GETMONITOR:
1414		CP_DEBUG2 (d, ("ioctl: getmonitor\n"));
1415		if (c->type != T_E1 &&
1416		    c->type != T_E3 &&
1417		    c->type != T_T3 &&
1418		    c->type != T_STS1)
1419			return EINVAL;
1420		*(int*)data = c->monitor;
1421		return 0;
1422
1423	case SERIAL_SETMONITOR:
1424		CP_DEBUG2 (d, ("ioctl: setmonitor\n"));
1425		/* Only for superuser! */
1426		error = priv_check (td, PRIV_DRIVER);
1427		if (error)
1428			return error;
1429		if (c->type != T_E1)
1430			return EINVAL;
1431		s = splimp ();
1432		CP_LOCK (bd);
1433		cp_set_monitor (c, *(int*)data);
1434		CP_UNLOCK (bd);
1435		splx (s);
1436		return 0;
1437
1438	case SERIAL_GETUSE16:
1439		CP_DEBUG2 (d, ("ioctl: getuse16\n"));
1440		if (c->type != T_E1 || c->unfram)
1441			return EINVAL;
1442		*(int*)data = c->use16;
1443		return 0;
1444
1445	case SERIAL_SETUSE16:
1446		CP_DEBUG2 (d, ("ioctl: setuse16\n"));
1447		/* Only for superuser! */
1448		error = priv_check (td, PRIV_DRIVER);
1449		if (error)
1450			return error;
1451		if (c->type != T_E1)
1452			return EINVAL;
1453		s = splimp ();
1454		CP_LOCK (bd);
1455		cp_set_use16 (c, *(int*)data);
1456		CP_UNLOCK (bd);
1457		splx (s);
1458		return 0;
1459
1460	case SERIAL_GETCRC4:
1461		CP_DEBUG2 (d, ("ioctl: getcrc4\n"));
1462		if (c->type != T_E1 || c->unfram)
1463			return EINVAL;
1464		*(int*)data = c->crc4;
1465		return 0;
1466
1467	case SERIAL_SETCRC4:
1468		CP_DEBUG2 (d, ("ioctl: setcrc4\n"));
1469		/* Only for superuser! */
1470		error = priv_check (td, PRIV_DRIVER);
1471		if (error)
1472			return error;
1473		if (c->type != T_E1)
1474			return EINVAL;
1475		s = splimp ();
1476		CP_LOCK (bd);
1477		cp_set_crc4 (c, *(int*)data);
1478		CP_UNLOCK (bd);
1479		splx (s);
1480		return 0;
1481
1482	case SERIAL_GETCLK:
1483		CP_DEBUG2 (d, ("ioctl: getclk\n"));
1484		if (c->type != T_E1 &&
1485		    c->type != T_G703 &&
1486		    c->type != T_E3 &&
1487		    c->type != T_T3 &&
1488		    c->type != T_STS1)
1489			return EINVAL;
1490		switch (c->gsyn) {
1491		default:	*(int*)data = E1CLK_INTERNAL;		break;
1492		case GSYN_RCV:	*(int*)data = E1CLK_RECEIVE;		break;
1493		case GSYN_RCV0:	*(int*)data = E1CLK_RECEIVE_CHAN0;	break;
1494		case GSYN_RCV1:	*(int*)data = E1CLK_RECEIVE_CHAN1;	break;
1495		case GSYN_RCV2:	*(int*)data = E1CLK_RECEIVE_CHAN2;	break;
1496		case GSYN_RCV3:	*(int*)data = E1CLK_RECEIVE_CHAN3;	break;
1497		}
1498		return 0;
1499
1500	case SERIAL_SETCLK:
1501		CP_DEBUG2 (d, ("ioctl: setclk\n"));
1502		/* Only for superuser! */
1503		error = priv_check (td, PRIV_DRIVER);
1504		if (error)
1505			return error;
1506		if (c->type != T_E1 &&
1507		    c->type != T_G703 &&
1508		    c->type != T_E3 &&
1509		    c->type != T_T3 &&
1510		    c->type != T_STS1)
1511			return EINVAL;
1512		s = splimp ();
1513		CP_LOCK (bd);
1514		switch (*(int*)data) {
1515		default:		  cp_set_gsyn (c, GSYN_INT);  break;
1516		case E1CLK_RECEIVE:	  cp_set_gsyn (c, GSYN_RCV);  break;
1517		case E1CLK_RECEIVE_CHAN0: cp_set_gsyn (c, GSYN_RCV0); break;
1518		case E1CLK_RECEIVE_CHAN1: cp_set_gsyn (c, GSYN_RCV1); break;
1519		case E1CLK_RECEIVE_CHAN2: cp_set_gsyn (c, GSYN_RCV2); break;
1520		case E1CLK_RECEIVE_CHAN3: cp_set_gsyn (c, GSYN_RCV3); break;
1521		}
1522		CP_UNLOCK (bd);
1523		splx (s);
1524		return 0;
1525
1526	case SERIAL_GETTIMESLOTS:
1527		CP_DEBUG2 (d, ("ioctl: gettimeslots\n"));
1528		if ((c->type != T_E1 || c->unfram) && c->type != T_DATA)
1529			return EINVAL;
1530		*(u_long*)data = c->ts;
1531		return 0;
1532
1533	case SERIAL_SETTIMESLOTS:
1534		CP_DEBUG2 (d, ("ioctl: settimeslots\n"));
1535		/* Only for superuser! */
1536		error = priv_check (td, PRIV_DRIVER);
1537		if (error)
1538			return error;
1539		if ((c->type != T_E1 || c->unfram) && c->type != T_DATA)
1540			return EINVAL;
1541		s = splimp ();
1542		CP_LOCK (bd);
1543		cp_set_ts (c, *(u_long*)data);
1544		CP_UNLOCK (bd);
1545		splx (s);
1546		return 0;
1547
1548	case SERIAL_GETINVCLK:
1549		CP_DEBUG2 (d, ("ioctl: getinvclk\n"));
1550#if 1
1551		return EINVAL;
1552#else
1553		if (c->type != T_SERIAL)
1554			return EINVAL;
1555		*(int*)data = c->invtxc;
1556		return 0;
1557#endif
1558
1559	case SERIAL_SETINVCLK:
1560		CP_DEBUG2 (d, ("ioctl: setinvclk\n"));
1561		/* Only for superuser! */
1562		error = priv_check (td, PRIV_DRIVER);
1563		if (error)
1564			return error;
1565		if (c->type != T_SERIAL)
1566			return EINVAL;
1567		s = splimp ();
1568		CP_LOCK (bd);
1569		cp_set_invtxc (c, *(int*)data);
1570		cp_set_invrxc (c, *(int*)data);
1571		CP_UNLOCK (bd);
1572		splx (s);
1573		return 0;
1574
1575	case SERIAL_GETINVTCLK:
1576		CP_DEBUG2 (d, ("ioctl: getinvtclk\n"));
1577		if (c->type != T_SERIAL)
1578			return EINVAL;
1579		*(int*)data = c->invtxc;
1580		return 0;
1581
1582	case SERIAL_SETINVTCLK:
1583		CP_DEBUG2 (d, ("ioctl: setinvtclk\n"));
1584		/* Only for superuser! */
1585		error = priv_check (td, PRIV_DRIVER);
1586		if (error)
1587			return error;
1588		if (c->type != T_SERIAL)
1589			return EINVAL;
1590		s = splimp ();
1591		CP_LOCK (bd);
1592		cp_set_invtxc (c, *(int*)data);
1593		CP_UNLOCK (bd);
1594		splx (s);
1595		return 0;
1596
1597	case SERIAL_GETINVRCLK:
1598		CP_DEBUG2 (d, ("ioctl: getinvrclk\n"));
1599		if (c->type != T_SERIAL)
1600			return EINVAL;
1601		*(int*)data = c->invrxc;
1602		return 0;
1603
1604	case SERIAL_SETINVRCLK:
1605		CP_DEBUG2 (d, ("ioctl: setinvrclk\n"));
1606		/* Only for superuser! */
1607		error = priv_check (td, PRIV_DRIVER);
1608		if (error)
1609			return error;
1610		if (c->type != T_SERIAL)
1611			return EINVAL;
1612		s = splimp ();
1613		CP_LOCK (bd);
1614		cp_set_invrxc (c, *(int*)data);
1615		CP_UNLOCK (bd);
1616		splx (s);
1617		return 0;
1618
1619	case SERIAL_GETLEVEL:
1620		CP_DEBUG2 (d, ("ioctl: getlevel\n"));
1621		if (c->type != T_G703)
1622			return EINVAL;
1623		s = splimp ();
1624		CP_LOCK (bd);
1625		*(int*)data = cp_get_lq (c);
1626		CP_UNLOCK (bd);
1627		splx (s);
1628		return 0;
1629
1630#if 0
1631	case SERIAL_RESET:
1632		CP_DEBUG2 (d, ("ioctl: reset\n"));
1633		/* Only for superuser! */
1634		error = priv_check (td, PRIV_DRIVER);
1635		if (error)
1636			return error;
1637		s = splimp ();
1638		CP_LOCK (bd);
1639		cp_reset (c->board, 0, 0);
1640		CP_UNLOCK (bd);
1641		splx (s);
1642		return 0;
1643
1644	case SERIAL_HARDRESET:
1645		CP_DEBUG2 (d, ("ioctl: hardreset\n"));
1646		/* Only for superuser! */
1647		error = priv_check (td, PRIV_DRIVER);
1648		if (error)
1649			return error;
1650		s = splimp ();
1651		CP_LOCK (bd);
1652		/* hard_reset (c->board); */
1653		CP_UNLOCK (bd);
1654		splx (s);
1655		return 0;
1656#endif
1657
1658	case SERIAL_GETCABLE:
1659		CP_DEBUG2 (d, ("ioctl: getcable\n"));
1660		if (c->type != T_SERIAL)
1661			return EINVAL;
1662		s = splimp ();
1663		CP_LOCK (bd);
1664		*(int*)data = cp_get_cable (c);
1665		CP_UNLOCK (bd);
1666		splx (s);
1667		return 0;
1668
1669	case SERIAL_GETDIR:
1670		CP_DEBUG2 (d, ("ioctl: getdir\n"));
1671		if (c->type != T_E1 && c->type != T_DATA)
1672			return EINVAL;
1673		*(int*)data = c->dir;
1674		return 0;
1675
1676	case SERIAL_SETDIR:
1677		CP_DEBUG2 (d, ("ioctl: setdir\n"));
1678		/* Only for superuser! */
1679		error = priv_check (td, PRIV_DRIVER);
1680		if (error)
1681			return error;
1682		s = splimp ();
1683		CP_LOCK (bd);
1684		cp_set_dir (c, *(int*)data);
1685		CP_UNLOCK (bd);
1686		splx (s);
1687		return 0;
1688
1689	case SERIAL_GETRLOOP:
1690		CP_DEBUG2 (d, ("ioctl: getrloop\n"));
1691		if (c->type != T_G703 &&
1692		    c->type != T_E3 &&
1693		    c->type != T_T3 &&
1694		    c->type != T_STS1)
1695			return EINVAL;
1696		*(int*)data = cp_get_rloop (c);
1697		return 0;
1698
1699	case SERIAL_SETRLOOP:
1700		CP_DEBUG2 (d, ("ioctl: setloop\n"));
1701		if (c->type != T_E3 && c->type != T_T3 && c->type != T_STS1)
1702			return EINVAL;
1703		/* Only for superuser! */
1704		error = priv_check (td, PRIV_DRIVER);
1705		if (error)
1706			return error;
1707		s = splimp ();
1708		CP_LOCK (bd);
1709		cp_set_rloop (c, *(int*)data);
1710		CP_UNLOCK (bd);
1711		splx (s);
1712		return 0;
1713
1714	case SERIAL_GETCABLEN:
1715		CP_DEBUG2 (d, ("ioctl: getcablen\n"));
1716		if (c->type != T_T3 && c->type != T_STS1)
1717			return EINVAL;
1718		*(int*)data = c->cablen;
1719		return 0;
1720
1721	case SERIAL_SETCABLEN:
1722		CP_DEBUG2 (d, ("ioctl: setloop\n"));
1723		if (c->type != T_T3 && c->type != T_STS1)
1724			return EINVAL;
1725		/* Only for superuser! */
1726		error = priv_check (td, PRIV_DRIVER);
1727		if (error)
1728			return error;
1729		s = splimp ();
1730		CP_LOCK (bd);
1731		cp_set_cablen (c, *(int*)data);
1732		CP_UNLOCK (bd);
1733		splx (s);
1734		return 0;
1735
1736	case TIOCSDTR:	/* Set DTR */
1737		s = splimp ();
1738		CP_LOCK (bd);
1739		cp_set_dtr (c, 1);
1740		CP_UNLOCK (bd);
1741		splx (s);
1742		return 0;
1743
1744	case TIOCCDTR:	/* Clear DTR */
1745		s = splimp ();
1746		CP_LOCK (bd);
1747		cp_set_dtr (c, 0);
1748		CP_UNLOCK (bd);
1749		splx (s);
1750		return 0;
1751
1752	case TIOCMSET:	/* Set DTR/RTS */
1753		s = splimp ();
1754		CP_LOCK (bd);
1755		cp_set_dtr (c, (*(int*)data & TIOCM_DTR) ? 1 : 0);
1756		cp_set_rts (c, (*(int*)data & TIOCM_RTS) ? 1 : 0);
1757		CP_UNLOCK (bd);
1758		splx (s);
1759		return 0;
1760
1761	case TIOCMBIS:	/* Add DTR/RTS */
1762		s = splimp ();
1763		CP_LOCK (bd);
1764		if (*(int*)data & TIOCM_DTR) cp_set_dtr (c, 1);
1765		if (*(int*)data & TIOCM_RTS) cp_set_rts (c, 1);
1766		CP_UNLOCK (bd);
1767		splx (s);
1768		return 0;
1769
1770	case TIOCMBIC:	/* Clear DTR/RTS */
1771		s = splimp ();
1772		CP_LOCK (bd);
1773		if (*(int*)data & TIOCM_DTR) cp_set_dtr (c, 0);
1774		if (*(int*)data & TIOCM_RTS) cp_set_rts (c, 0);
1775		CP_UNLOCK (bd);
1776		splx (s);
1777		return 0;
1778
1779	case TIOCMGET:	/* Get modem status */
1780		*(int*)data = cp_modem_status (c);
1781		return 0;
1782	}
1783	return ENOTTY;
1784}
1785
1786#ifdef NETGRAPH
1787static int ng_cp_constructor (node_p node)
1788{
1789	drv_t *d = NG_NODE_PRIVATE (node);
1790	CP_DEBUG (d, ("Constructor\n"));
1791	return EINVAL;
1792}
1793
1794static int ng_cp_newhook (node_p node, hook_p hook, const char *name)
1795{
1796	int s;
1797	drv_t *d = NG_NODE_PRIVATE (node);
1798	bdrv_t *bd = d->board->sys;
1799
1800	CP_DEBUG (d, ("Newhook\n"));
1801	/* Attach debug hook */
1802	if (strcmp (name, NG_CP_HOOK_DEBUG) == 0) {
1803		NG_HOOK_SET_PRIVATE (hook, NULL);
1804		d->debug_hook = hook;
1805		return 0;
1806	}
1807
1808	/* Check for raw hook */
1809	if (strcmp (name, NG_CP_HOOK_RAW) != 0)
1810		return EINVAL;
1811
1812	NG_HOOK_SET_PRIVATE (hook, d);
1813	d->hook = hook;
1814	s = splimp ();
1815	CP_LOCK (bd);
1816	cp_up (d);
1817	CP_UNLOCK (bd);
1818	splx (s);
1819	return 0;
1820}
1821
1822static char *format_timeslots (u_long s)
1823{
1824	static char buf [100];
1825	char *p = buf;
1826	int i;
1827
1828	for (i=1; i<32; ++i)
1829		if ((s >> i) & 1) {
1830			int prev = (i > 1)  & (s >> (i-1));
1831			int next = (i < 31) & (s >> (i+1));
1832
1833			if (prev) {
1834				if (next)
1835					continue;
1836				*p++ = '-';
1837			} else if (p > buf)
1838				*p++ = ',';
1839
1840			if (i >= 10)
1841				*p++ = '0' + i / 10;
1842			*p++ = '0' + i % 10;
1843		}
1844	*p = 0;
1845	return buf;
1846}
1847
1848static int print_modems (char *s, cp_chan_t *c, int need_header)
1849{
1850	int status = cp_modem_status (c);
1851	int length = 0;
1852
1853	if (need_header)
1854		length += sprintf (s + length, "  LE   DTR  DSR  RTS  CTS  CD\n");
1855	length += sprintf (s + length, "%4s %4s %4s %4s %4s %4s\n",
1856		status & TIOCM_LE  ? "On" : "-",
1857		status & TIOCM_DTR ? "On" : "-",
1858		status & TIOCM_DSR ? "On" : "-",
1859		status & TIOCM_RTS ? "On" : "-",
1860		status & TIOCM_CTS ? "On" : "-",
1861		status & TIOCM_CD  ? "On" : "-");
1862	return length;
1863}
1864
1865static int print_stats (char *s, cp_chan_t *c, int need_header)
1866{
1867	int length = 0;
1868
1869	if (need_header)
1870		length += sprintf (s + length, "  Rintr   Tintr   Mintr   Ibytes   Ipkts   Ierrs   Obytes   Opkts   Oerrs\n");
1871	length += sprintf (s + length, "%7ld %7ld %7ld %8lu %7ld %7ld %8lu %7ld %7ld\n",
1872		c->rintr, c->tintr, 0l, (unsigned long) c->ibytes,
1873		c->ipkts, c->overrun + c->frame + c->crc,
1874		(unsigned long) c->obytes, c->opkts, c->underrun);
1875	return length;
1876}
1877
1878static char *format_e1_status (u_char status)
1879{
1880	static char buf [80];
1881
1882	if (status & E1_NOALARM)
1883		return "Ok";
1884	buf[0] = 0;
1885	if (status & E1_LOS)     strcat (buf, ",LOS");
1886	if (status & E1_AIS)     strcat (buf, ",AIS");
1887	if (status & E1_LOF)     strcat (buf, ",LOF");
1888	if (status & E1_LOMF)    strcat (buf, ",LOMF");
1889	if (status & E1_FARLOF)  strcat (buf, ",FARLOF");
1890	if (status & E1_AIS16)   strcat (buf, ",AIS16");
1891	if (status & E1_FARLOMF) strcat (buf, ",FARLOMF");
1892	if (status & E1_TSTREQ)  strcat (buf, ",TSTREQ");
1893	if (status & E1_TSTERR)  strcat (buf, ",TSTERR");
1894	if (buf[0] == ',')
1895		return buf+1;
1896	return "Unknown";
1897}
1898
1899static int print_frac (char *s, int leftalign, u_long numerator, u_long divider)
1900{
1901	int n, length = 0;
1902
1903	if (numerator < 1 || divider < 1) {
1904		length += sprintf (s+length, leftalign ? "/-   " : "    -");
1905		return length;
1906	}
1907	n = (int) (0.5 + 1000.0 * numerator / divider);
1908	if (n < 1000) {
1909		length += sprintf (s+length, leftalign ? "/.%-3d" : " .%03d", n);
1910		return length;
1911	}
1912	*(s + length) = leftalign ? '/' : ' ';
1913	length ++;
1914
1915	if      (n >= 1000000) n = (n+500) / 1000 * 1000;
1916	else if (n >= 100000)  n = (n+50)  / 100 * 100;
1917	else if (n >= 10000)   n = (n+5)   / 10 * 10;
1918
1919	switch (n) {
1920	case 1000:    length += printf (s+length, ".999"); return length;
1921	case 10000:   n = 9990;   break;
1922	case 100000:  n = 99900;  break;
1923	case 1000000: n = 999000; break;
1924	}
1925	if (n < 10000)	      length += sprintf (s+length, "%d.%d", n/1000, n/10%100);
1926	else if (n < 100000)  length += sprintf (s+length, "%d.%d", n/1000, n/100%10);
1927	else if (n < 1000000) length += sprintf (s+length, "%d.", n/1000);
1928	else		      length += sprintf (s+length, "%d", n/1000);
1929
1930	return length;
1931}
1932
1933static int print_e1_stats (char *s, cp_chan_t *c)
1934{
1935	struct e1_counters total;
1936	u_long totsec;
1937	int length = 0;
1938
1939	totsec		= c->totsec + c->cursec;
1940	total.bpv	= c->total.bpv   + c->currnt.bpv;
1941	total.fse	= c->total.fse   + c->currnt.fse;
1942	total.crce	= c->total.crce  + c->currnt.crce;
1943	total.rcrce	= c->total.rcrce + c->currnt.rcrce;
1944	total.uas	= c->total.uas   + c->currnt.uas;
1945	total.les	= c->total.les   + c->currnt.les;
1946	total.es	= c->total.es    + c->currnt.es;
1947	total.bes	= c->total.bes   + c->currnt.bes;
1948	total.ses	= c->total.ses   + c->currnt.ses;
1949	total.oofs	= c->total.oofs  + c->currnt.oofs;
1950	total.css	= c->total.css   + c->currnt.css;
1951	total.dm	= c->total.dm    + c->currnt.dm;
1952
1953	length += sprintf (s + length, " Unav/Degr  Bpv/Fsyn  CRC/RCRC  Err/Lerr  Sev/Bur   Oof/Slp  Status\n");
1954
1955	/* Unavailable seconds, degraded minutes */
1956	length += print_frac (s + length, 0, c->currnt.uas, c->cursec);
1957	length += print_frac (s + length, 1, 60 * c->currnt.dm, c->cursec);
1958
1959	/* Bipolar violations, frame sync errors */
1960	length += print_frac (s + length, 0, c->currnt.bpv, c->cursec);
1961	length += print_frac (s + length, 1, c->currnt.fse, c->cursec);
1962
1963	/* CRC errors, remote CRC errors (E-bit) */
1964	length += print_frac (s + length, 0, c->currnt.crce, c->cursec);
1965	length += print_frac (s + length, 1, c->currnt.rcrce, c->cursec);
1966
1967	/* Errored seconds, line errored seconds */
1968	length += print_frac (s + length, 0, c->currnt.es, c->cursec);
1969	length += print_frac (s + length, 1, c->currnt.les, c->cursec);
1970
1971	/* Severely errored seconds, burst errored seconds */
1972	length += print_frac (s + length, 0, c->currnt.ses, c->cursec);
1973	length += print_frac (s + length, 1, c->currnt.bes, c->cursec);
1974
1975	/* Out of frame seconds, controlled slip seconds */
1976	length += print_frac (s + length, 0, c->currnt.oofs, c->cursec);
1977	length += print_frac (s + length, 1, c->currnt.css, c->cursec);
1978
1979	length += sprintf (s + length, " %s\n", format_e1_status (c->status));
1980
1981	/* Print total statistics. */
1982	length += print_frac (s + length, 0, total.uas, totsec);
1983	length += print_frac (s + length, 1, 60 * total.dm, totsec);
1984
1985	length += print_frac (s + length, 0, total.bpv, totsec);
1986	length += print_frac (s + length, 1, total.fse, totsec);
1987
1988	length += print_frac (s + length, 0, total.crce, totsec);
1989	length += print_frac (s + length, 1, total.rcrce, totsec);
1990
1991	length += print_frac (s + length, 0, total.es, totsec);
1992	length += print_frac (s + length, 1, total.les, totsec);
1993
1994	length += print_frac (s + length, 0, total.ses, totsec);
1995	length += print_frac (s + length, 1, total.bes, totsec);
1996
1997	length += print_frac (s + length, 0, total.oofs, totsec);
1998	length += print_frac (s + length, 1, total.css, totsec);
1999
2000	length += sprintf (s + length, " -- Total\n");
2001	return length;
2002}
2003
2004static int print_chan (char *s, cp_chan_t *c)
2005{
2006	drv_t *d = c->sys;
2007	bdrv_t *bd = d->board->sys;
2008	int length = 0;
2009
2010	length += sprintf (s + length, "cp%d", c->board->num * NCHAN + c->num);
2011	if (d->chan->debug)
2012		length += sprintf (s + length, " debug=%d", d->chan->debug);
2013
2014	if (c->board->mux) {
2015		length += sprintf (s + length, " cfg=C");
2016	} else {
2017		length += sprintf (s + length, " cfg=A");
2018	}
2019
2020	if (c->baud)
2021		length += sprintf (s + length, " %ld", c->baud);
2022	else
2023		length += sprintf (s + length, " extclock");
2024
2025	if (c->type == T_E1 || c->type == T_G703)
2026		switch (c->gsyn) {
2027		case GSYN_INT   : length += sprintf (s + length, " syn=int");     break;
2028		case GSYN_RCV   : length += sprintf (s + length, " syn=rcv");     break;
2029		case GSYN_RCV0  : length += sprintf (s + length, " syn=rcv0");    break;
2030		case GSYN_RCV1  : length += sprintf (s + length, " syn=rcv1");    break;
2031		case GSYN_RCV2  : length += sprintf (s + length, " syn=rcv2");    break;
2032		case GSYN_RCV3  : length += sprintf (s + length, " syn=rcv3");    break;
2033		}
2034	if (c->type == T_SERIAL) {
2035		length += sprintf (s + length, " dpll=%s",   c->dpll   ? "on" : "off");
2036		length += sprintf (s + length, " nrzi=%s",   c->nrzi   ? "on" : "off");
2037		length += sprintf (s + length, " invclk=%s", c->invtxc ? "on" : "off");
2038	}
2039	if (c->type == T_E1)
2040		length += sprintf (s + length, " higain=%s", c->higain ? "on" : "off");
2041
2042	length += sprintf (s + length, " loop=%s", c->lloop ? "on" : "off");
2043
2044	if (c->type == T_E1)
2045		length += sprintf (s + length, " ts=%s", format_timeslots (c->ts));
2046	if (c->type == T_G703) {
2047		int lq, x;
2048
2049		x = splimp ();
2050		CP_LOCK (bd);
2051		lq = cp_get_lq (c);
2052		CP_UNLOCK (bd);
2053		splx (x);
2054		length += sprintf (s + length, " (level=-%.1fdB)", lq / 10.0);
2055	}
2056	length += sprintf (s + length, "\n");
2057	return length;
2058}
2059
2060static int ng_cp_rcvmsg (node_p node, item_p item, hook_p lasthook)
2061{
2062	drv_t *d = NG_NODE_PRIVATE (node);
2063	struct ng_mesg *msg;
2064	struct ng_mesg *resp = NULL;
2065	int error = 0;
2066
2067	CP_DEBUG (d, ("Rcvmsg\n"));
2068	NGI_GET_MSG (item, msg);
2069	switch (msg->header.typecookie) {
2070	default:
2071		error = EINVAL;
2072		break;
2073
2074	case NGM_CP_COOKIE:
2075		printf ("Not implemented yet\n");
2076		error = EINVAL;
2077		break;
2078
2079	case NGM_GENERIC_COOKIE:
2080		switch (msg->header.cmd) {
2081		default:
2082			error = EINVAL;
2083			break;
2084
2085		case NGM_TEXT_STATUS: {
2086			char *s;
2087			int l = 0;
2088			int dl = sizeof (struct ng_mesg) + 730;
2089
2090			NG_MKRESPONSE (resp, msg, dl, M_NOWAIT);
2091			if (! resp) {
2092				error = ENOMEM;
2093				break;
2094			}
2095			s = (resp)->data;
2096			if (d) {
2097			l += print_chan (s + l, d->chan);
2098			l += print_stats (s + l, d->chan, 1);
2099			l += print_modems (s + l, d->chan, 1);
2100			l += print_e1_stats (s + l, d->chan);
2101			} else
2102				l += sprintf (s + l, "Error: node not connect to channel");
2103			strncpy ((resp)->header.cmdstr, "status", NG_CMDSTRSIZ);
2104			}
2105			break;
2106		}
2107		break;
2108	}
2109	NG_RESPOND_MSG (error, node, item, resp);
2110	NG_FREE_MSG (msg);
2111	return error;
2112}
2113
2114static int ng_cp_rcvdata (hook_p hook, item_p item)
2115{
2116	drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE(hook));
2117	struct mbuf *m;
2118	struct ng_tag_prio *ptag;
2119	bdrv_t *bd = d->board->sys;
2120	struct ifqueue *q;
2121	int s;
2122
2123	CP_DEBUG2 (d, ("Rcvdata\n"));
2124	NGI_GET_M (item, m);
2125	NG_FREE_ITEM (item);
2126	if (! NG_HOOK_PRIVATE (hook) || ! d) {
2127		NG_FREE_M (m);
2128		return ENETDOWN;
2129	}
2130
2131	/* Check for high priority data */
2132	if ((ptag = (struct ng_tag_prio *)m_tag_locate(m, NGM_GENERIC_COOKIE,
2133	    NG_TAG_PRIO, NULL)) != NULL && (ptag->priority > NG_PRIO_CUTOFF) )
2134		q = &d->hi_queue;
2135	else
2136		q = &d->queue;
2137
2138	s = splimp ();
2139	CP_LOCK (bd);
2140	IF_LOCK (q);
2141	if (_IF_QFULL (q)) {
2142		IF_UNLOCK (q);
2143		CP_UNLOCK (bd);
2144		splx (s);
2145		NG_FREE_M (m);
2146		return ENOBUFS;
2147	}
2148	_IF_ENQUEUE (q, m);
2149	IF_UNLOCK (q);
2150	cp_start (d);
2151	CP_UNLOCK (bd);
2152	splx (s);
2153	return 0;
2154}
2155
2156static int ng_cp_rmnode (node_p node)
2157{
2158	drv_t *d = NG_NODE_PRIVATE (node);
2159
2160	CP_DEBUG (d, ("Rmnode\n"));
2161	if (d && d->running) {
2162		bdrv_t *bd = d->board->sys;
2163		int s = splimp ();
2164		CP_LOCK (bd);
2165		cp_down (d);
2166		CP_UNLOCK (bd);
2167		splx (s);
2168	}
2169#ifdef	KLD_MODULE
2170	if (node->nd_flags & NGF_REALLY_DIE) {
2171		NG_NODE_SET_PRIVATE (node, NULL);
2172		NG_NODE_UNREF (node);
2173	}
2174	NG_NODE_REVIVE(node);		/* Persistent node */
2175#endif
2176	return 0;
2177}
2178
2179static int ng_cp_connect (hook_p hook)
2180{
2181	drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
2182
2183	if (d) {
2184		CP_DEBUG (d, ("Connect\n"));
2185		callout_reset (&d->timeout_handle, hz, cp_watchdog_timer, d);
2186	}
2187
2188	return 0;
2189}
2190
2191static int ng_cp_disconnect (hook_p hook)
2192{
2193	drv_t *d = NG_NODE_PRIVATE (NG_HOOK_NODE (hook));
2194
2195	if (d) {
2196		CP_DEBUG (d, ("Disconnect\n"));
2197		if (NG_HOOK_PRIVATE (hook))
2198		{
2199			bdrv_t *bd = d->board->sys;
2200			int s = splimp ();
2201			CP_LOCK (bd);
2202			cp_down (d);
2203			CP_UNLOCK (bd);
2204			splx (s);
2205		}
2206		/* If we were wait it than it reasserted now, just stop it. */
2207		if (!callout_drain (&d->timeout_handle))
2208			callout_stop (&d->timeout_handle);
2209	}
2210	return 0;
2211}
2212#endif
2213
2214static int cp_modevent (module_t mod, int type, void *unused)
2215{
2216	static int load_count = 0;
2217
2218	switch (type) {
2219	case MOD_LOAD:
2220#ifdef NETGRAPH
2221		if (ng_newtype (&typestruct))
2222			printf ("Failed to register ng_cp\n");
2223#endif
2224		++load_count;
2225		callout_init (&timeout_handle, 1);
2226		callout_reset (&timeout_handle, hz*5, cp_timeout, 0);
2227		break;
2228	case MOD_UNLOAD:
2229		if (load_count == 1) {
2230			printf ("Removing device entry for Tau-PCI\n");
2231#ifdef NETGRAPH
2232			ng_rmtype (&typestruct);
2233#endif
2234		}
2235		/* If we were wait it than it reasserted now, just stop it.
2236		 * Actually we shouldn't get this condition. But code could be
2237		 * changed in the future, so just be a litle paranoid.
2238		 */
2239		if (!callout_drain (&timeout_handle))
2240			callout_stop (&timeout_handle);
2241		--load_count;
2242		break;
2243	case MOD_SHUTDOWN:
2244		break;
2245	}
2246	return 0;
2247}
2248
2249#ifdef NETGRAPH
2250static struct ng_type typestruct = {
2251	.version	= NG_ABI_VERSION,
2252	.name		= NG_CP_NODE_TYPE,
2253	.constructor	= ng_cp_constructor,
2254	.rcvmsg		= ng_cp_rcvmsg,
2255	.shutdown	= ng_cp_rmnode,
2256	.newhook	= ng_cp_newhook,
2257	.connect	= ng_cp_connect,
2258	.rcvdata	= ng_cp_rcvdata,
2259	.disconnect	= ng_cp_disconnect,
2260};
2261#endif /*NETGRAPH*/
2262
2263#ifdef NETGRAPH
2264MODULE_DEPEND (ng_cp, netgraph, NG_ABI_VERSION, NG_ABI_VERSION, NG_ABI_VERSION);
2265#else
2266MODULE_DEPEND (cp, sppp, 1, 1, 1);
2267#endif
2268DRIVER_MODULE (cp, pci, cp_driver, cp_devclass, cp_modevent, NULL);
2269MODULE_VERSION (cp, 1);
2270